Fig. 1From: The effect of ecological environmental changes and mollusciciding on snail intermediate host of Schistosoma in Qianjiang city of China from 1985 to 2015Qianjiang city location and the distribution of waterway networks. The waterway networks are extracted from the GaoFen 2 (GF-2) images (spatial resolution: 2.35 m) in 2016 which were downloaded from Hubei data and application network of the high-resolution earth observation system (http://hbeos.org.cn/), based on remote sensing image classificationBack to article page